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SubjectRe: Re: Re: Re: Re: Re: [PATCH v1] sched/numa: add per-process numa_balancing
On 11/10/21 12:26 AM, Mel Gorman wrote:
> Of those two, I agree with the second one, it would be tricky to implement
> but the first one is less clear. This is based on an assumption. If prctl
> exists to enable/disable NUMA baalancing, it's possible that someone
> else would want to control NUMA balancing on a cgroup basis instead of
> globally which would run into the same type of concerns -- different
> semantics depending on the global tunable.


You talk about the "semantics" of NUMA balancing between global, cgroup
and process. While I read the kernel doc "NUMA Memory Policy", it occur
to me that we may have a "NUMA Balancing Policy".

Since you are the reviewer of CONFIG_NUMA_BALANCING. I would like to
discuss the need for introducing "NUMA Balancing Policy" with you. Is
this worth doing?

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